

But the installer was distributed by App Store.

But how can I obtain that old image of OS X?Īfter browsing around, I learnt that the latest version that can be installed on the machine is OS X El Capitan. The only way I can think of is to have OS X on the USB drive. There is no Internet Recovery for this old machine ☹️ Let’s try the hard way Reset NVRAM and reinstall via Recovery (some random post on the internet told me that) - same as normally reinstall via Recovery.

